Bag



FIG. 1 is a perspective view of my new design;

FIG. 2 is another perspective view of my new design;

FIG. 3 is a front elevational view of FIG. 1;

FIG. 4 is a side elevational view of FIG. 1, the opposite side being a mirror image; and,

FIG. 5 is a rear elevational view of FIG. 1.

The broken lines representing stitching are part of the claimed design. 

CLAIM The ornamental design for a bag, as shown and described. 